Fluid injection means



"""zliazss March 8, 1938. N. J. DZIEDz'lc FLUID INJECTION MEANS Filed July 29, 1935 2 Sheets-#Sheet l Y r QN mm. NN s I W o@ n NN. A ./Wv WN N Nww Mw INVENTOR ATTORNEY March s, 1938. N, J DZIED'ZIC 2,110,263.

FLUID IJECTION MEANS Filed July 29, 1955 2 Sheets-Sheet 2 ATTORNEY Patented Mar. 8, 1938 UNITED STATES PATENT OFFICE FLUID INJECTION MEANS Application July 29, 1935, Serial No. 33,701

18 Claims.

This invention relates toa fluid injection means.

One of the objects of this invention is to provide an improved uid injection means.

Another object of this invention is to provide a device for injecting a curing medium into the hollow interior of the bone of meat cuts.

Another object of this invention is to provide a device for injecting a curing medium under pressure into the hollow interior of the bone of meat cuts whereby it will be forced through the articular cartilage to the flesh surrounding the bone.

Another object of this invention is to provide a device for introducing a curing medium into the bone, the esh or through the vascular system of cuts of meat.

Another object of this invention is to provide means for injecting a curing medium into the marrow of bone to prevent souring of the marrow.

Another object of this invention is to provide a device utilizing a needle for the injection of a curing medium into the marrow of bone, having novel means for preventing stoppage and clogging of the needle during the injection thereof.

Another object of this invention is to provide a needle for introducing a curing medium under pressure into cuts of meat, having means engageable with the outer surface of the product to prevent leakage of the curing medium at the point of insertion of the needle.

Another object of this invention is to provide a needle for introducing a curing medium into cuts of meat having means for positively limiting the insertion thereof.

Another object of this invention is to provide a device of this character having adjustable means for varying the depth of insertion of the needle.

Other objects will be apparent from the description and claims which follow.

In the drawings, similar reference characters in the several gures designate similar parts.

Figure 1 is a side View of a preferred embodiment of the present invention, partly in section, showing the needle closed, ready for insertion.

Figure 2 is a side view, partly in section, showing the needle as it will appear whenin operation.

Figure 3 is a plan view of Figure 1.

Figure 4 is a side elevation, the sealing means being shown in full lines in a rearward position and in dotted lines in a partly forward position.

Figure 5 is an end View of the barrel portion of the device taken on line 5-5 of Figure 4.

Figure 6 is a transverse view of the barrel portion, partly in section, taken on line 6--6 of Figure 4.

The device shown in Figure 1 comprises a barrel portion I and a stock portion 2.

Barrel I comprises hollow cylinder 3 threaded within stock 2 at 4. Piston 5 is slidably mounted within cylinder 3 and is provided with compression rings 6 to snugly engage the inner wall of cylinder 3. The movement of piston 5 is limited at the stock end of cylinder 3 by annular boss 'I and at the needle end of cylinder 3 by plug 8 threaded within cylinder 3 at 9.

Plug 8 is provided with opening I0 for the reception of tubular injection needle which eX- tends outwardly from cylinder 3. Needle adapted for insertion into meat products, is securely held within opening I0 by plug I3 threaded within plug 8. Elongated pin |4 is secured at one end to face 20 of piston 5 at I5. When piston 5 is in the position shown in Figure 1, pointed end I6 of pin I4 extends slightly beyond the end of needle Conduit communicates with cylinder 3 through port I8 and with cylinder 5| through port 56. Plug 8 is annularly recessed at I3 tov permit fluid passing through port I8 lto flow freely into cylinder 3 at a point slightly beyond the foremost movement of piston 5 and thus to apply pressure against face 20 thereof.

Rack 2| is rigidly secured to the outer face of cylinder 3 and is provided with a series of notches 22 having intervening spaces 23. Handle 24 is slidably mounted upon cylinder 3 kand rack 2|. Handle 24 is bored at 25 for the passage of conduit by which it will be seen handle 24 is free to move lengthwise of cylinder 3 but is prevented from rotating thereabout.

Cap 26 is secured to handle 24 above rack 2| by screws 21 and is cut away at 28 and bored at 29 to permit reciprocal movement of dog 30 and stem 3|, respectively. Dog 30 is provided with notches 32 having intervening spaces 33 to mesh with comparable spaces 23 and notches 22 on rack 2|, respectively, and hold handle 24 in a fixed position on cylinder 3. Dog 3l) is held in engagement with rack 2| by coil spring 34 interposed between it and cap 26. Knob 35 is secured to rod 3| by rivet 36 for manually raising dog 30 to alter the position of handle 24.

Plate 31, provided with opening 38, is slidably mounted at right angles to needle and is rigidly secured to handle 24 by bolts 39. Cushion 40 of rubber or other resilient material is secured to face 4| of plate 3`| by screws 42. As handle 24 is moved forward on rack 2|, the extension of 15 50 in which is rigidly secured cylindenEIx: Ports 52 and 53 provide communication between cyln to follow the path of least resistance and flown-1V backwardly to the point of insertion rather than through the product.

Stock portion 2 is provided-lwithvertical bore-.

inder 5I and cylinder 3.` Port 5 2 is centrally disposed within boss 1 and serves to'carrycuring44 medium to cylinder 3 for applying pressure@v 20 against face 54 of pistonS.v Port 53 is disposed within recess" 55 abo`ve-port 52 L"and serves j-to empty curing medium from cylinder 3 upon-prese" surebeingappliedY against face-28of piston 5.

Fluid inlet passage 58 and; uid outlet passage theproduct.

25 6l!"exteirid-from 1 the "jbutt4 lend A88 fof "handle 51 to throughl` ports -59 f" and- 6 I ,f respectively;l Outlet" passage ,S8/is provided-with branch passages 62 and 63 -Aconnnunicatingwithcylinder `5I through iports64 and-65jrespectively.4

Valve-61;" havingenlaxged"portions168,569and-l` and reduced portionsI;1 2 andj-13and`stem-' 14," -is reciprocally: mounted jwithin cylinder 5 I, the"enlarged= portions4 68 69 "and 10 l"snugly ene gagingithe inner wall of -cylinder 5I Cap j 1 5,'-1 provided with opening 1,6 fothefpas-m sage-of stem v14,j is threaded-within"cylinderj'l: Gland' coupling ,11 v1is threadedi within cap-15" about l stem 14 to provide suitable sealingjrneansm fiox'at'opening 16.S`Av` Cap18'is threaded within end-- 19 vof `cylinder 5I: Movement vof valve"6-1 l's lim-" ited between caps and 18 by reduced portion 13 `andenlarg.edp`0rtion f'respectively Trigger 8I zis 'pivotally"mountedwithin `stock 50 `lagainsticap18 by thet'action of A'coilsp`ring'85,

interposed between' stock 2 and-trigger 8 I kand rested A within Arecesses 86 l"and 81;' respectively. y

Passages 58 'and 60 are provided at the'butt end 88 with: extension nipples.l 89 landi 90;' A'threaded supply line93 extends from a source `Of'curing supplynot shownandjs secured about-nipple 89.*"

vFlexible returnI "line 94 "extends from nipple-f90 to .thesource of curing supply to 'return thereto occuring medium usedin theoperationiof `the-gun, 1

hereinafter described s As shown' in Figure "1", valve^61 normally rests at its uppermost limit. It will'be seen; therefore;V`

thatga curing; medium 'suchx Sas piclrling'brinev forced throughfsupply line "93"under pressure;

will pass through passageway 5,8,"port'59, aroundv reduced; portion 12, through v'port' 52 ,andv 'intocylinder 3-to`appl,y. pressure against face. 54"of 1 piston .5. Pistcn5, 'by'reasom of `this pressure,

\''willibe` urged 'to its' 'extreme limit` against cap 8 andsimultaneouslyipush Vpin I4 througlrrieedle..-

I Ithereby-closing'needlel I to prevent stoppage andf'clogging of Athe jsame during its insertionfinto Y theproduct Whenpiston'S strike'sjcap` 8, point. 75146 of 'pini I4'extends slightly beyond'A needle 'II and serves to cut' a neat slit for insertion of the needle into the product. Also, as piston 5 is urged toward cap 8 due to pressure against face 54, face simultaneously forces the curing medium previously contained in the forward end of cylinder 3 through port I8, conduit I1, port 56, around reduced portion 13, through port 65, branchrline 63, to return .passage 60 and :through return line 94;.

As shown in Figure 2 of the drawings, when trigger 8I is drawn to the full line position, arm 83 actuates valve 61 and curing medium under pressure from supply line 93 ows through passageway-,58,port,59,around reduced portion 12, throughtrport"56,tconduit I1 and port I8, to enter cylinder3 andapplyr-pressure against face 20 of piston 5. Pressure against face 2l) urges piston 5 to thestock end"of 'cylinder 3, forcing the curing -mediumpreviously directed against face 54 through port 53, around reduced portion 11|, thrcughlp'ort'l I ,i and `outlet passage 68 to 'return line 94. By movement of piston 5, pin I4 is with@ When 'the' desired lquantity "of curing vmedium has been injected, trigger-8| is releasedto return valve= 61 Sito *its normal vresting position, vthereby reversingfthefiiow of curing mediuml to close -nee dle 4II as previously fdescribed:I Needle II may thenbe= withdrawn'fromthe product without waste of -curingmedium.

Port '64 and branch line 62 serve to prevent-"- binding fof valve 61lby"'carrying',away4 curingV medium trapped above valve` 61'during the opera.` tion `of'fthe'device. l

Curing medium is preferably directed Y to the deviceatlow Apressurev such-that whenP it is desired-'to `inject the curing'niediurn -into the marrowfthe "-pressure1will=be sufllcient to force the curing-medium from the needle-'Without blowing the marrowJ from-the" bone. f

I claimsl. 'A device of 'the' class described comprising) -a cylinder, a tubular V'needle extending from one end thereof,-a fluid actuated piston 'slidable in saidcylinder and an elongated -pin` securedto said" piston in relationto fand-slidable in lsaid needle for 'closingl saidf'needle at the pointof insertion to `prevent icloggingf thereof i 2. A device of the classdescribed comprising a cylinderiyxa tubular lneedleextending from one endthe'reofpaffluid actuated =piston slidablein said cylinder `andan elongated-pin secured to said piston in relation to andfslidable insaid needle", saidlpin being operable bysaidfpistonand serving 7to `closethe needle 'at thev point i of needle end of said cylinder.

3. A device of the" class: described 'comprising a cylinderfa tubular eneedle lextending'from one.

saidcylinder and fan elongatedfpinrhaving a pointed end extending from-said `piston in the insertion upon: thepistonbeing-advanced to the? f end thereof, a fiuidactuatedpiston Aslidable` in thepoint of insertion, saidipointedendprotruding from saidfneedleupon thepiston being' ad- Vancedto thelneedle end.y of said cylinder to cut a passageway for thelinsertion of said needle.-

4. A device of the classdescribed comprising a A cylinder., a tubularneedle extending therefrom, a

fluid actuatedpiston .slidable' in said cylinder,

means actuated by said pistonfor' closing the end. of said needle 'and valve means 'for alternately directing uid against opposite faces of said piston to actuate saidfneedle closing means.

5. A device of the class described comprising a cylinder, a tubular needle extending from one end thereof, a fluid actuated piston slidable in said cylinder, means secured to said piston in relation to and slidable in said needle for closing said needle at the pointof insertion, a valve, a fluid inlet and outlet communicating with said valve, a uid conduit fromsaid valve to the needle end of said cylinder, ports between said valve and the opposite end of saidcylinderand means for directing fluid against said piston.

46. A device of the class described comprising a cylinder, a tubular needle extending from one end thereof, a fluid actuated piston. slidable in said cylinder, means secured to said piston in relation to and slidable in said needle for closing said needle at the `point ofinsertion, 'a valve, a fluid inlet and outlet communicating with said valve, a uid conduit from said valve to the needle end of said cylinder, ports between said valve and the opposite end of said cylinder and means for directing fluid against said piston whereby to open said needle and pass fluid therethrough.

7. A device of the class described comprising a cylinder, a tubular needle extending from one en'd thereof, a fluid actuated piston slidable in said cylinder, means secured to said piston in relation to and slidable in said needle for closing Said needle at the point of insertion, a valve, a fluid inlet and outlet communicating with said valve, a fluid conduit from said valve to the needle end of said cylinder, ports between said valve and the opposite end of said cylinder, means for directing the piston toward the needle for closing the same, means for directing the piston from the needle for opening the same and means for directing fluid through said needle when opened.

8. A pickle gun of the class described having a barrel portion and a stock portion comprising a cylinder, a tubular needle extending from the free end of said cylinder, a piston slidable in said cylinder, means carried on said piston for opening and closing said needle, a valve between said stock portion and said barrel portion, a fluid inlet and outlet in said stock portion communicating with said valve and ports between said valve and said cylinder, said valve constituting means for directing uid to the piston whereby to open and close said needle and for directing fluid through the needle when opened.

9. A pickle gun of the class described having a barrel portion and a stock portion comprising a cylinder, a tubular needle extending from the free end of said cylinder, a piston slidable in said cylinder, means carried on said piston for opening and closing said needle, a valve between said stock portion and said barrel portion, a fluid inlet and outlet in said stock portion communicating with said valve, ports between said valve and said cylinder, said valve constituting means for directing fluid to the piston whereby to open and close said needle and for directing fluid through the needle when opened and means movable on said cylinder to vary the depth of insertion of said needle.

10. A pickle gun of the class described having a barrel portion and a stock portion comprising a cylinder, a tubular needle extending from the free end of said cylinder, a piston slidable in said cylinder, means carried on said piston for opening and closing said needle, a valve between said stock portion and said barrel portion, a fluid inlet and outlet in said stock portion communicating with said valve,ports between said valve and said cylinder, said valve constituting means for directing fluid to the piston whereby to open and close said needle and for directing fluid through the needle when opened and means adjustable on said cylinder forfcarrying a plate movable in relation to said needle' to vary the depth 'of insertion thereof. 1

11'. A pickle gun of the class described having a barrel portion and a stock portion comprising a cylinder, a tubular needle extending from the free end of said cylinder, a piston slidable in said cylinder, means carried on said piston for opening and` closing said needle, a valve betweeny said stock portion and said barrel portion, a fluid inlet and outlet in `said stock portion communicating with said valve, ports between said valve and said cylinder, said valve vconstituting means for directing fluid to the piston whereby to open and close said needle and for directing fluid through the needle when opened, a notched rack on said cylinder and adjustable means having a dog engageable with said rack for carrying a plate movable in relation to said needle to vary the depth of insertion thereof.

12. A pickle gun of the class described having a barrel portion and a stock portion comprising a cylinder, a tubular needle extending from the free end of said cylinder, a piston slidable in said cylinder, means carried on said piston for opening and closing said needle, a valve between said stock portion and said barrel portion, a uid inlet and outlet in said stock portion communicating with said valve, ports between said valve and said cylinder, said valve constituting means for directing uid to the piston whereby to open and close said needle and for directing fluid through the needle when opened, means adjustable on said cylinder for carrying a plate movable in relation to said needle to vary the depth of insertion thereof and resilient means secured to said plate to serve as sealing means at the point of insertion of said needle.

13. A pickle gun of the class described having a barrel portion and a stock portion comprising a cylinder, a tubular needle extending from the free end of said cylinder, a piston slidable in said cylinder, means carried on said piston for opening and closing said needle, a valve between said stock portion and said barrel portion, a uid inlet and outlet in said stock portion communicating with said valve, ports between said valve and said cylinder, said valve constituting means for directing uid to the piston whereby to open and close said needle and for directing fluid through the needle when opened, means adjustable on said cylinder for carrying a plate movable in relation to said needle to vary the depth of insertion thereof and a resilient cushion secured to said plate adapted to conform to the outer surface of the product and to serve as sealing means at the point of insertion of said needle.

14. In a device of the class described including a cylinder having a piston slidable therein, a tubular injection needle communicating with said cylinder and a pin slidable in said needle to close the end of said needle, said pin being connected with and operable by said piston.

15. In a device of the class described including a cylinder having a fluid actuated piston slidable therein, a uid conduit communicating with said cylinder, means including a pin operable to close the end of said fluid conduit, said conduit closing means being connected with said pistonand to said cylinder whereby said piston will operate to withdrawv said needleV closing means from the passageway of said tubular needle. y

L7. A device comprising a cylinder having a piston slidable therein, a tubularinjection needle communicating with the cylinder, a pin connected 2,0 with and operable by the piston and slidable through the needle to close the end'of the needle, a plate adjustably mounted for movement. 1ongitudinally of the needle to control the depth o! insertion thereof, and resilient means securedto the plate providing a fluid sealing means at the point of insertion of the needle. Y

18. A device comprising a. cylinder having a piston slidable therein; atiibular injection needle communicating with the4 cylinder, a pin connected with and operable bythe piston and slidable through the needle to close-the end of the needle, a plate slidably mounted at right angleto the needle, means for xedly adjusting the plate longitudinally of the lneedle tol control the depth of insertion of the needle, and a cushion of resilient material secured to the plate providing a fluid sealing means at the point of insertion of the needle.

l NICHOLAS J. DzIEDzIC.v 20 

